Thoughts without content are empty, intuitions without concepts are blind.

I am myself by inclination an investigator.

The only objects of practical reason are therefore those of good and evil. For by the former is meant an object necessarily desired according to a principle of reason; by the latter one necessarily shunned, also according to a principle of reason.

Without man and his potential for moral progress, the whole of reality would be a mere wilderness, a thing in vain, and have no final purpose.

There will always be some people who think for themselves, even among the self-appointed guardians of the great mass who, after having thrown off the yoke of immaturity themselves, will spread about them the spirit of a reasonable estimate of their own value and of the need for every man to think for himself.

Laws always lose in energy what the government gains in extent.

If education is to develop human nature so that it may attain the object of its being, it must involve the exercise of judgment.